摘要
以淮南潘谢煤田13_(-1)煤层煤岩基本物理、力学参数为基础,结合文献数据确定了煤岩HJC本构模型的基本力学参数。依据所确定的参数,对煤岩SHPB主动围压实验进行了数值模拟。通过Ansys/Ls-Dyna隐式-显式求解序列实现了主动围压的加载,对试件应力均匀性进行了检验,对煤岩的围压效应进行了研究。
Based on the basic mechanical test data and literature information of coal rock in Huainan 13_1 coal seam, the fundamental parameters of the HJC constitutive model of coal rock are determined. According to the determined parameters, the SHPB test with active confining pressure is numerically simulated by means of Ansys/Ls-Dyna implicit-explicit solution sequence, the stress uniformity of the specimens was tested and the confining pressure effect of coal is studied.
作者
张朋朋
宫能平
周建
ZHANG Peng-peng;GONG Neng-ping;ZHOU Jian(School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, China)
出处
《煤炭技术》
CAS
2018年第5期76-78,共3页
Coal Technology
基金
安徽理工大学研究生创新基金项目(2017CX2023)
关键词
煤岩
SHPB
主动围压
数值模拟
预应力
应力均匀性
coal rock
SHPB
active confining pressure
numerical simulation
prestressing force
stress uniformity
